Fixed crc
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@ -21,7 +21,7 @@ ARCHIVE_KEEP_INTERVAL = 365 * 24 * 60 * 60 # 1 year
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MAX_MISSING = 0.5
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# Manual claims poly should be 0x8404, internet says xmodem
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CRC_TYPE = 'xmodem'
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CRC_TYPE = 'crc-aug-ccitt'
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STORED_VALUES = [
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12
update.py
12
update.py
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@ -12,13 +12,17 @@ calc_crc = crcmod.predefined.mkCrcFun(CRC_TYPE)
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def parse_line(line):
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if line[-2:] != "\r\n":
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print("newline fucked")
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return {key : None for key in FORMAT}
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line = line[:-2]
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crc_str = line[-2:]
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payload = line[0:-2]
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crc = (ord(crc_str[0]) << 8) | ord(crc_str[1])
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crc_str = line[-4:]
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print(crc_str)
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payload = line[0:-4]
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crc = int(crc_str, 16)
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calced_crc = calc_crc(payload.encode('ascii'))
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if crc != calc_crc(payload.encode('ascii')):
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print("CRC fucked")
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return {key : None for key in FORMAT}
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parts = payload.split(';')
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@ -74,7 +78,7 @@ def update_graphs():
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# Render current data
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graph_params = ['%s.png' % graph_name, '-a',
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'PNG', '-s', 'n-%d' % ARCHIVE_INTERVAL]
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for name, lable, color in lines:
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graph_params += ['DEF:%s=%s:%s:LAST' % (name, DATA_FILE, name)]
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graph_params += ['LINE1:%s%s:%s' % (name, color, lable)]
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